Refactor! for ASP.NET extract to user control, rename, move style to style sheets, surround with update panels and many more with ease.

OR

Coderush (Trial, best to buy as it is really worth it. For the broke, download a new version, uninstall and install when it expires). Generates templates for classes, exceptions, for/foreach loops and many more. Identifies syntax errors, suggests alternative shorter statements. Also provides the DXCore library (free) which some of the plugins depend on. (Requires a powerful computer)

Refactor Pro! (Trial, best to buy as it is really worth it. For the broke, download a new version, uninstall and install when it expires). Rename, move a piece of code into a new method, extract interface, simplify logic, extract html styles to style sheets, remove end tags in XML and many more with ease. (Requires a powerful computer)

WPF tools

Xceed DataGrid for WPF Express provides the missing data grid, masked text box, date time picker and other controls in WPF. (Warning: The last time that I’ve used it, there are some properties that you need to leave it as default, if not the data grid will crash. Test extensively.)

Server-side

Source control (SVN)

Continuous Integration

CruiseControl.NET check-out source code, run scripts, unit tests, source analysis whenever there is a check-in to source control. (Warning: hard to configure. I am now using it only to check-out source code)